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A flagellum (/ f l ə ˈ dʒ ɛ l əm /; pl.: flagella) (Latin for 'whip' or 'scourge') is a hairlike appendage that protrudes from certain plant and animal sperm cells, from fungal spores (), and from a wide range of microorganisms to provide motility.
Parasitic Excavata ( Giardia lamblia) Green algae ( Chlamydomonas) A flagellate is a cell or organism with one or more whip -like appendages called flagella. The word flagellate also describes a particular construction (or level of organization) characteristic of many prokaryotes and eukaryotes and their means of motion.
Bacterial motility is the ability of bacteria to move independently using metabolic energy. Most motility mechanisms that evolved among bacteria also evolved in parallel among the archaea. Most rod-shaped bacteria can move using their own power, which allows colonization of new environments and discovery of new resources for survival.
Euglena is a genus of single cell flagellate eukaryotes. It is the best known and most widely studied member of the class Euglenoidea, a diverse group containing some 54 genera and at least 200 species. [ 1 ][ 2 ] Species of Euglena are found in fresh water and salt water. They are often abundant in quiet inland waters where they may bloom in ...
Bacterial cellular morphologies are the shapes that are characteristic of various types of bacteria and often key to their identification. Their direct examination under a light microscope enables the classification of these bacteria (and archaea ). Generally, the basic morphologies are spheres (coccus) and round-ended cylinders or rod shaped ...
Axoneme. Eukaryotic flagellum. 1-axoneme, 2-cell membrane, 3-IFT ( intraflagellar transport ), 4-basal body, 5-cross section of flagellum, 6-triplets of microtubules of basal body. A simplified model of intraflagellar transport. In molecular biology, an axoneme, also called an axial filament, is the microtubule -based cytoskeletal structure ...
The group includes flagellates (which move with the help of undulating and beating flagella). Ciliates (which move by using hair-like structures called cilia) and amoebae (which move by the use of temporary extensions of cytoplasm called pseudopodia). Many protozoa, such as the agents of amoebic meningitis, use both pseudopodia and flagella.
The flagellum is a rotating structure driven by a reversible motor at the base that uses the electrochemical gradient across the membrane for power. [146] The different arrangements of bacterial flagella: A-Monotrichous; B-Lophotrichous; C-Amphitrichous; D-Peritrichous. Bacteria can use flagella in different ways to generate different kinds of ...